Ok, … played a few albums and this is my take …
Have to say up front this is in no way an endorsement for the 1QSE, only my own experience.
Your system will be totally different to mine so what I’ve experienced you may not, in fact in the reviews I’ve seen the ‘tweak’ works better in some components than others.
Saying that, in my current experience, I’ve only added them into the P10, not any of my actual kit so it’s only working on the electricity supply to my kit.
Albums used so far are :
Lord Huron - Lonesome Dreams
Hippo Campus - Landmark
Beatles - Sgt Peppers, 50th Anniversary Edition
The National - High Violet
Kevin Drew (Broken social Scene ) - Spirit If
Sounded a bit more discordant than I’m used when I first switched on. Don’t know if this a one off due to the system change or to expect it every time, time will tell.
System settled down after the first cd and was sounding like I remember it.
(Bit of change in the system as the Stillpoints were removed from the pre-amp to go under the projector, (long story), so not quite as I remember it.)
But sounding as good as with the Stillpoints still in place.
Last 3 albums really began to show the changes.
Sgt Peppers especially I’m familiar with as purchased recently and played a lot.
Songs sounded more natural, I was drawn in more, harmonies came across better, strings sounded more real.
Treble and hi hats especially sounded very natural, no harshness.
The National cd, not well recorded, as done in a home studio, but again I connected with it better than before.
Kevin Drew - very well recorded disc, again connected with it really well.
Watched the end of Heat, the new re-mastered edition, harder here to see or hear any improvements.
Early days, but I’m happy with what the 2 iQSE’s have brought to my system with just being added into the P10.
I’m already wondering what they would do to within my stereo and home cinema components.
To sum up, I found the system more natural and easier to listen too … and it was already very good.
Again, this is my personal experience, YMMV.